SL/R129: 99 Sl 600 Dyno Numbers!!!
01-14-2006, 06:24 PM
#1
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99 Sl 600 Dyno Numbers!!!
I Had My 99 Sl 600 Mercedes Dyno The Other Day. The Car Made 331.7 Hp And 391.4 Tq On One Run And 334.5 Hp And 396.5 Tq On The Other, The Air/fuel Ratio Was 14.3!! My Next Step Is To Change My Rearend Gears To A Lower Ratio! Pat
01-15-2006, 02:40 PM
#4
MBWorld Fanatic!
My figures are flywheel estimates from the modifications done to the intake system (4% power gain over 389 hp and 420 tq stock). Hoping to get an opportunity to put that beast on the dyno and catch some rear wheel hp figures. 
The reason yours (figures) jumped out at me is that they were significantly higher than the stock flywheel estimates. Assuming the standard 22.5% transmission loss, your flywheel figures are about 408 hp and 484 tq. (1.225 X 334.5 and 1.225 X 396.5) Maybe MB grossly underestimated the car, or the car came with some work on it, because those are very high numbers for stock. Either way my friend, that is some serious power. 
The reason yours (figures) jumped out at me is that they were significantly higher than the stock flywheel estimates. Assuming the standard 22.5% transmission loss, your flywheel figures are about 408 hp and 484 tq. (1.225 X 334.5 and 1.225 X 396.5) Maybe MB grossly underestimated the car, or the car came with some work on it, because those are very high numbers for stock. Either way my friend, that is some serious power.
01-15-2006, 03:28 PM
#5
Originally Posted by HLG600
My figures are flywheel estimates from the modifications done to the intake system (4% power gain over 389 hp and 420 tq stock). Hoping to get an opportunity to put that beast on the dyno and catch some rear wheel hp figures. The reason yours (figures) jumped out at me is that they were significantly higher than the stock flywheel estimates. Assuming the standard 22.5% transmission loss, your flywheel figures are about 408 hp and 484 tq. (1.225 X 334.5 and 1.225 X 396.5) Maybe MB grossly underestimated the car, or the car came with some work on it, because those are very high numbers for stock. Either way my friend, that is some serious power.
The reason yours (figures) jumped out at me is that they were significantly higher than the stock flywheel estimates. Assuming the standard 22.5% transmission loss, your flywheel figures are about 408 hp and 484 tq. (1.225 X 334.5 and 1.225 X 396.5) Maybe MB grossly underestimated the car, or the car came with some work on it, because those are very high numbers for stock. Either way my friend, that is some serious power. they ususally do under state there cars.
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01-15-2006, 11:34 PM
#8
MBWorld Fanatic!
Dual K&N Filter Upgrade. Actually, while on this topic, I have to say I was very impressed when I compared the new filters to the stock ones. The old ones were made of paper, and looked horrible and cheap. But the new K&N ones looked fantastic, fabric filters slightly oiled with metal mesh reinforcement. I double checked with my mechanic, showed him both filters, and he too was surprised. But I must add, are you positive that your car came stock (maybe a prior owner modified it)? Those numbers are fantastic...you're convincing me to take mine to a dyno.
